/**
 * @1900-2100区间内的公历、农历互转
 * @charset UTF-8
 * @Author  Jea杨(JJonline@JJonline.Cn)
 * @Time    2014-7-21
 * @Time    2016-8-13 Fixed 2033hex、Attribution Annals
 * @Time    2016-9-25 Fixed lunar LeapMonth Param Bug
 * @Time    2017-7-24 Fixed use getTerm Func Param Error.use solar year,NOT lunar year
 * @Version 1.0.3
 * @公历转农历：calendar.solar2lunar(1987,11,01); //[you can ignore params of prefix 0]
 * @农历转公历：calendar.lunar2solar(1987,09,10); //[you can ignore params of prefix 0]
 */
const calendar = {
    /**
     * 农历1900-2100的润大小信息表
     * @Array Of Property
     * @return Hex
     */
    lunarInfo: [
        0x04bd8,
        0x04ae0,
        0x0a570,
        0x054d5,
        0x0d260,
        0x0d950,
        0x16554,
        0x056a0,
        0x09ad0,
        0x055d2, //1900-1909
        0x04ae0,
        0x0a5b6,
        0x0a4d0,
        0x0d250,
        0x1d255,
        0x0b540,
        0x0d6a0,
        0x0ada2,
        0x095b0,
        0x14977, //1910-1919
        0x04970,
        0x0a4b0,
        0x0b4b5,
        0x06a50,
        0x06d40,
        0x1ab54,
        0x02b60,
        0x09570,
        0x052f2,
        0x04970, //1920-1929
        0x06566,
        0x0d4a0,
        0x0ea50,
        0x16a95,
        0x05ad0,
        0x02b60,
        0x186e3,
        0x092e0,
        0x1c8d7,
        0x0c950, //1930-1939
        0x0d4a0,
        0x1d8a6,
        0x0b550,
        0x056a0,
        0x1a5b4,
        0x025d0,
        0x092d0,
        0x0d2b2,
        0x0a950,
        0x0b557, //1940-1949
        0x06ca0,
        0x0b550,
        0x15355,
        0x04da0,
        0x0a5b0,
        0x14573,
        0x052b0,
        0x0a9a8,
        0x0e950,
        0x06aa0, //1950-1959
        0x0aea6,
        0x0ab50,
        0x04b60,
        0x0aae4,
        0x0a570,
        0x05260,
        0x0f263,
        0x0d950,
        0x05b57,
        0x056a0, //1960-1969
        0x096d0,
        0x04dd5,
        0x04ad0,
        0x0a4d0,
        0x0d4d4,
        0x0d250,
        0x0d558,
        0x0b540,
        0x0b6a0,
        0x195a6, //1970-1979
        0x095b0,
        0x049b0,
        0x0a974,
        0x0a4b0,
        0x0b27a,
        0x06a50,
        0x06d40,
        0x0af46,
        0x0ab60,
        0x09570, //1980-1989
        0x04af5,
        0x04970,
        0x064b0,
        0x074a3,
        0x0ea50,
        0x06b58,
        0x05ac0,
        0x0ab60,
        0x096d5,
        0x092e0, //1990-1999
        0x0c960,
        0x0d954,
        0x0d4a0,
        0x0da50,
        0x07552,
        0x056a0,
        0x0abb7,
        0x025d0,
        0x092d0,
        0x0cab5, //2000-2009
        0x0a950,
        0x0b4a0,
        0x0baa4,
        0x0ad50,
        0x055d9,
        0x04ba0,
        0x0a5b0,
        0x15176,
        0x052b0,
        0x0a930, //2010-2019
        0x07954,
        0x06aa0,
        0x0ad50,
        0x05b52,
        0x04b60,
        0x0a6e6,
        0x0a4e0,
        0x0d260,
        0x0ea65,
        0x0d530, //2020-2029
        0x05aa0,
        0x076a3,
        0x096d0,
        0x04afb,
        0x04ad0,
        0x0a4d0,
        0x1d0b6,
        0x0d250,
        0x0d520,
        0x0dd45, //2030-2039
        0x0b5a0,
        0x056d0,
        0x055b2,
        0x049b0,
        0x0a577,
        0x0a4b0,
        0x0aa50,
        0x1b255,
        0x06d20,
        0x0ada0, //2040-2049
        /**Add By JJonline@JJonline.Cn**/
        0x14b63,
        0x09370,
        0x049f8,
        0x04970,
        0x064b0,
        0x168a6,
        0x0ea50,
        0x06b20,
        0x1a6c4,
        0x0aae0, //2050-2059
        0x092e0,
        0x0d2e3,
        0x0c960,
        0x0d557,
        0x0d4a0,
        0x0da50,
        0x05d55,
        0x056a0,
        0x0a6d0,
        0x055d4, //2060-2069
        0x052d0,
        0x0a9b8,
        0x0a950,
        0x0b4a0,
        0x0b6a6,
        0x0ad50,
        0x055a0,
        0x0aba4,
        0x0a5b0,
        0x052b0, //2070-2079
        0x0b273,
        0x06930,
        0x07337,
        0x06aa0,
        0x0ad50,
        0x14b55,
        0x04b60,
        0x0a570,
        0x054e4,
        0x0d160, //2080-2089
        0x0e968,
        0x0d520,
        0x0daa0,
        0x16aa6,
        0x056d0,
        0x04ae0,
        0x0a9d4,
        0x0a2d0,
        0x0d150,
        0x0f252, //2090-2099
        0x0d520,
    ], //2100

    /**
     * 公历每个月份的天数普通表
     * @Array Of Property
     * @return Number
     */
    solarMonth: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],

    /**
     * 天干地支之天干速查表
     * @Array Of Property trans["甲","乙","丙","丁","戊","己","庚","辛","壬","癸"]
     * @return Cn string
     */
    Gan: [
        "\u7532",
        "\u4e59",
        "\u4e19",
        "\u4e01",
        "\u620a",
        "\u5df1",
        "\u5e9a",
        "\u8f9b",
        "\u58ec",
        "\u7678",
    ],

    /**
     * 天干地支之地支速查表
     * @Array Of Property
     * @trans["子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"]
     * @return Cn string
     */
    Zhi: [
        "\u5b50",
        "\u4e11",
        "\u5bc5",
        "\u536f",
        "\u8fb0",
        "\u5df3",
        "\u5348",
        "\u672a",
        "\u7533",
        "\u9149",
        "\u620c",
        "\u4ea5",
    ],

    /**
     * 天干地支之地支速查表<=>生肖
     * @Array Of Property
     * @trans["鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"]
     * @return Cn string
     */
    Animals: [
        "\u9f20",
        "\u725b",
        "\u864e",
        "\u5154",
        "\u9f99",
        "\u86c7",
        "\u9a6c",
        "\u7f8a",
        "\u7334",
        "\u9e21",
        "\u72d7",
        "\u732a",
    ],

    /**
     * 阳历节日
     */
    festival: {
        "1-1": { title: "元旦节" },
        "2-14": { title: "情人节" },
        "5-1": { title: "劳动节" },
        "5-4": { title: "青年节" },
        "6-1": { title: "儿童节" },
        "9-10": { title: "教师节" },
        "10-1": { title: "国庆节" },
        "12-25": { title: "圣诞节" },

        "3-8": { title: "妇女节" },
        "3-12": { title: "植树节" },
        "4-1": { title: "愚人节" },
        "5-12": { title: "护士节" },
        "7-1": { title: "建党节" },
        "8-1": { title: "建军节" },
        "12-24": { title: "平安夜" },
    },

    /**
     * 农历节日
     */
    lFestival: {
        "12-30": { title: "除夕" },
        "1-1": { title: "春节" },
        "1-15": { title: "元宵节" },
        "2-2": { title: "龙抬头" },
        "5-5": { title: "端午节" },
        "7-7": { title: "七夕节" },
        "7-15": { title: "中元节" },
        "8-15": { title: "中秋节" },
        "9-9": { title: "重阳节" },
        "10-1": { title: "寒衣节" },
        "10-15": { title: "下元节" },
        "12-8": { title: "腊八节" },
        "12-23": { title: "北方小年" },
        "12-24": { title: "南方小年" },
    },

    /**
     * 返回默认定义的阳历节日
     */
    getFestival() {
        return this.festival;
    },

    /**
     * 返回默认定义的内容里节日
     */
    getLunarFestival() {
        return this.lFestival;
    },

    /**
     *
     * @param param {Object} 按照festival的格式输入数据，设置阳历节日
     */
    setFestival(param = {}) {
        this.festival = param;
    },

    /**
     *
     * @param param {Object} 按照lFestival的格式输入数据，设置农历节日
     */
    setLunarFestival(param = {}) {
        this.lFestival = param;
    },

    /**
     * 24节气速查表
     * @Array Of Property
     * @trans["小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"]
     * @return Cn string
     */
    solarTerm: [
        "\u5c0f\u5bd2",
        "\u5927\u5bd2",
        "\u7acb\u6625",
        "\u96e8\u6c34",
        "\u60ca\u86f0",
        "\u6625\u5206",
        "\u6e05\u660e",
        "\u8c37\u96e8",
        "\u7acb\u590f",
        "\u5c0f\u6ee1",
        "\u8292\u79cd",
        "\u590f\u81f3",
        "\u5c0f\u6691",
        "\u5927\u6691",
        "\u7acb\u79cb",
        "\u5904\u6691",
        "\u767d\u9732",
        "\u79cb\u5206",
        "\u5bd2\u9732",
        "\u971c\u964d",
        "\u7acb\u51ac",
        "\u5c0f\u96ea",
        "\u5927\u96ea",
        "\u51ac\u81f3",
    ],

    /**
     * 1900-2100各年的24节气日期速查表
     * @Array Of Property
     * @return 0x string For splice
     */
    sTermInfo: [
        "9778397bd097c36b0b6fc9274c91aa",
        "97b6b97bd19801ec9210c965cc920e",
        "97bcf97c3598082c95f8c965cc920f",
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        "b027097bd097c36b0b6fc9274c91aa",
        "97b6b97bd19801ec9210c965cc920e",
        "97bcf97c359801ec95f8c965cc920f",
        "97bd0b06bdb0722c965ce1cfcc920f",
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        "97bd09801d98082c95f8e1cfcc920f",
        "97bd097bd097c36b0b6fc9210c8dc2",
        "9778397bd197c36c9210c9274c91aa",
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        "97bd09801d98082c95f8e1cfcc920f",
        "97bd097bd097c36b0b6fc9210c8dc2",
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        "7f0e37f0e37f14898082b072297c35",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f531b0723b0b6fb0721",
        "7f0e27f1487f531b0b0bb0b6fb0722",
        "7f0e37f0e37f14898082b072297c35",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f531b0723b0b6fb0721",
        "7f0e27f1487f531b0b0bb0b6fb0722",
        "7f0e37f0e366aa89801eb072297c35",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f149b0723b0787b0721",
        "7f0e27f1487f531b0b0bb0b6fb0722",
        "7f0e37f0e366aa89801eb072297c35",
        "7ec967f0e37f14998082b0723b06bd",
        "7f07e7f0e47f149b0723b0787b0721",
        "7f0e27f0e47f531b0723b0b6fb0722",
        "7f0e37f0e366aa89801eb072297c35",
        "7ec967f0e37f14998082b0723b06bd",
        "7f07e7f0e37f14998083b0787b0721",
        "7f0e27f0e47f531b0723b0b6fb0722",
        "7f0e37f0e366aa89801eb072297c35",
        "7ec967f0e37f14898082b0723b02d5",
        "7f07e7f0e37f14998082b0787b0721",
        "7f07e7f0e47f531b0723b0b6fb0722",
        "7f0e36665b66aa89801e9808297c35",
        "665f67f0e37f14898082b0723b02d5",
        "7ec967f0e37f14998082b0787b0721",
        "7f07e7f0e47f531b0723b0b6fb0722",
        "7f0e36665b66a449801e9808297c35",
        "665f67f0e37f14898082b0723b02d5",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f531b0723b0b6fb0721",
        "7f0e36665b66a449801e9808297c35",
        "665f67f0e37f14898082b072297c35",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f531b0723b0b6fb0721",
        "7f0e26665b66a449801e9808297c35",
        "665f67f0e37f1489801eb072297c35",
        "7ec967f0e37f14998082b0787b06bd",
        "7f07e7f0e47f531b0723b0b6fb0721",
        "7f0e27f1487f531b0b0bb0b6fb0722",
    ],

    /**
     * 数字转中文速查表
     * @Array Of Property
     * @trans ['日','一','二','三','四','五','六','七','八','九','十']
     * @return Cn string
     */
    nStr1: [
        "\u65e5",
        "\u4e00",
        "\u4e8c",
        "\u4e09",
        "\u56db",
        "\u4e94",
        "\u516d",
        "\u4e03",
        "\u516b",
        "\u4e5d",
        "\u5341",
    ],

    /**
     * 日期转农历称呼速查表
     * @Array Of Property
     * @trans ['初','十','廿','卅']
     * @return Cn string
     */
    nStr2: ["\u521d", "\u5341", "\u5eff", "\u5345"],

    /**
     * 月份转农历称呼速查表
     * @Array Of Property
     * @trans ['正','一','二','三','四','五','六','七','八','九','十','冬','腊']
     * @return Cn string
     */
    nStr3: [
        "\u6b63",
        "\u4e8c",
        "\u4e09",
        "\u56db",
        "\u4e94",
        "\u516d",
        "\u4e03",
        "\u516b",
        "\u4e5d",
        "\u5341",
        "\u51ac",
        "\u814a",
    ],

    /**
     * 返回农历y年一整年的总天数
     * @param y lunar Year
     * @return Number
     * @eg:var count = calendar.lYearDays(1987) ;//count=387
     */
    lYearDays: function (y) {
        let i,
            sum = 348;
        for (i = 0x8000; i > 0x8; i >>= 1) {
            sum += this.lunarInfo[y - 1900] & i ? 1 : 0;
        }
        return sum + this.leapDays(y);
    },

    /**
     * 返回农历y年闰月是哪个月；若y年没有闰月 则返回0
     * @param y lunar Year
     * @return Number (0-12)
     * @eg:var leapMonth = calendar.leapMonth(1987) ;//leapMonth=6
     */
    leapMonth: function (y) {
        //闰字编码 \u95f0
        return this.lunarInfo[y - 1900] & 0xf;
    },

    /**
     * 返回农历y年闰月的天数 若该年没有闰月则返回0
     * @param y lunar Year
     * @return Number (0、29、30)
     * @eg:var leapMonthDay = calendar.leapDays(1987) ;//leapMonthDay=29
     */
    leapDays: function (y) {
        if (this.leapMonth(y)) {
            return this.lunarInfo[y - 1900] & 0x10000 ? 30 : 29;
        }
        return 0;
    },

    /**
     * 返回农历y年m月（非闰月）的总天数，计算m为闰月时的天数请使用leapDays方法
     * @param y lunar Year
     * @param m lunar Month
     * @return Number (-1、29、30)
     * @eg:var MonthDay = calendar.monthDays(1987,9) ;//MonthDay=29
     */
    monthDays: function (y, m) {
        if (m > 12 || m < 1) {
            return -1;
        } //月份参数从1至12，参数错误返回-1
        return this.lunarInfo[y - 1900] & (0x10000 >> m) ? 30 : 29;
    },

    /**
     * 返回公历(!)y年m月的天数
     * @param y solar Year
     * @param m solar Month
     * @return Number (-1、28、29、30、31)
     * @eg:var solarMonthDay = calendar.leapDays(1987) ;//solarMonthDay=30
     */
    solarDays: function (y, m) {
        if (m > 12 || m < 1) {
            return -1;
        } //若参数错误 返回-1
        const ms = m - 1;
        if (ms === 1) {
            //2月份的闰平规律测算后确认返回28或29
            return (y % 4 === 0 && y % 100 !== 0) || y % 400 === 0 ? 29 : 28;
        } else {
            return this.solarMonth[ms];
        }
    },

    /**
     * 农历年份转换为干支纪年
     * @param  lYear 农历年的年份数
     * @return Cn string
     */
    toGanZhiYear: function (lYear) {
        var ganKey = (lYear - 3) % 10;
        var zhiKey = (lYear - 3) % 12;
        if (ganKey === 0) ganKey = 10; //如果余数为0则为最后一个天干
        if (zhiKey === 0) zhiKey = 12; //如果余数为0则为最后一个地支
        return this.Gan[ganKey - 1] + this.Zhi[zhiKey - 1];
    },

    /**
     * 公历月、日判断所属星座
     * @param  cMonth [description]
     * @param  cDay [description]
     * @return Cn string
     */
    toAstro: function (cMonth, cDay) {
        const s =
            "\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf";
        const arr = [20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22];
        return (
            s.substr(cMonth * 2 - (cDay < arr[cMonth - 1] ? 2 : 0), 2) +
            "\u5ea7"
        ); //座
    },

    /**
     * 传入offset偏移量返回干支
     * @param offset 相对甲子的偏移量
     * @return Cn string
     */
    toGanZhi: function (offset) {
        return this.Gan[offset % 10] + this.Zhi[offset % 12];
    },

    /**
     * 传入公历(!)y年获得该年第n个节气的公历日期
     * @param y y公历年(1900-2100)
     * @param n n二十四节气中的第几个节气(1~24)；从n=1(小寒)算起
     * @return day Number
     * @eg:var _24 = calendar.getTerm(1987,3) ;//_24=4;意即1987年2月4日立春
     */
    getTerm: function (y, n) {
        if (y < 1900 || y > 2100 || n < 1 || n > 24) {
            return -1;
        }
        const _table = this.sTermInfo[y - 1900];
        const _calcDay = [];
        for (let index = 0; index < _table.length; index += 5) {
            const chunk = parseInt("0x" + _table.substr(index, 5)).toString();
            _calcDay.push(
                chunk[0],
                chunk.substr(1, 2),
                chunk[3],
                chunk.substr(4, 2)
            );
        }
        return parseInt(_calcDay[n - 1]);
    },

    /**
     * 传入农历数字月份返回汉语通俗表示法
     * @param m lunar month
     * @return Cn string
     * @eg:var cnMonth = calendar.toChinaMonth(12) ;//cnMonth='腊月'
     */
    toChinaMonth: function (m) {
        // 月 => \u6708
        if (m > 12 || m < 1) {
            return -1;
        } //若参数错误 返回-1
        let s = this.nStr3[m - 1];
        s += "\u6708"; //加上月字
        return s;
    },

    /**
     * 传入农历日期数字返回汉字表示法
     * @param d lunar day
     * @return Cn string
     * @eg:var cnDay = calendar.toChinaDay(21) ;//cnMonth='廿一'
     */
    toChinaDay: function (d) {
        //日 => \u65e5
        let s;
        switch (d) {
            case 10:
                s = "\u521d\u5341";
                break;
            case 20:
                s = "\u4e8c\u5341";
                break;
            case 30:
                s = "\u4e09\u5341";
                break;
            default:
                s = this.nStr2[Math.floor(d / 10)];
                s += this.nStr1[d % 10];
        }
        return s;
    },

    /**
     * 年份转生肖[!仅能大致转换] => 精确划分生肖分界线是“立春”
     * @param y year
     * @return Cn string
     * @eg:var animal = calendar.getAnimal(1987) ;//animal='兔'
     */
    getAnimal: function (y) {
        return this.Animals[(y - 4) % 12];
    },

    /**
     * 传入阳历年月日获得详细的公历、农历object信息 <=>JSON
     * !important! 公历参数区间1900.1.31~2100.12.31
     * @param yPara  solar year
     * @param mPara  solar month
     * @param dPara  solar day
     * @return JSON object
     * @eg:console.log(calendar.solar2lunar(1987,11,01));
     */
    solar2lunar: function (yPara, mPara, dPara) {
        let y = parseInt(yPara);
        let m = parseInt(mPara);
        let d = parseInt(dPara);
        //年份限定、上限
        if (y < 1900 || y > 2100) {
            return -1; // undefined转换为数字变为NaN
        }
        //公历传参最下限
        if (y === 1900 && m === 1 && d < 31) {
            return -1;
        }

        //未传参  获得当天
        let objDate;
        if (!y) {
            objDate = new Date();
        } else {
            objDate = new Date(y, parseInt(m) - 1, d);
        }
        let i,
            leap = 0,
            temp = 0;
        //修正ymd参数
        y = objDate.getFullYear();
        m = objDate.getMonth() + 1;
        d = objDate.getDate();
        let offset =
            (Date.UTC(
                objDate.getFullYear(),
                objDate.getMonth(),
                objDate.getDate()
            ) -
                Date.UTC(1900, 0, 31)) /
            86400000;
        for (i = 1900; i < 2101 && offset > 0; i++) {
            temp = this.lYearDays(i);
            offset -= temp;
        }
        if (offset < 0) {
            offset += temp;
            i--;
        }

        //是否今天
        let isTodayObj = new Date(),
            isToday = false;
        if (
            isTodayObj.getFullYear() === y &&
            isTodayObj.getMonth() + 1 === m &&
            isTodayObj.getDate() === d
        ) {
            isToday = true;
        }
        //星期几
        let nWeek = objDate.getDay(),
            cWeek = this.nStr1[nWeek];
        //数字表示周几顺应天朝周一开始的惯例
        if (nWeek === 0) {
            nWeek = 7;
        }
        //农历年
        const year = i;
        leap = this.leapMonth(i); //闰哪个月
        let isLeap = false;

        //效验闰月
        for (i = 1; i < 13 && offset > 0; i++) {
            //闰月
            if (leap > 0 && i === leap + 1 && isLeap === false) {
                --i;
                isLeap = true;
                temp = this.leapDays(year); //计算农历闰月天数
            } else {
                temp = this.monthDays(year, i); //计算农历普通月天数
            }
            //解除闰月
            if (isLeap === true && i === leap + 1) {
                isLeap = false;
            }
            offset -= temp;
        }
        // 闰月导致数组下标重叠取反
        if (offset === 0 && leap > 0 && i === leap + 1) {
            if (isLeap) {
                isLeap = false;
            } else {
                isLeap = true;
                --i;
            }
        }
        if (offset < 0) {
            offset += temp;
            --i;
        }
        //农历月
        const month = i;
        //农历日
        const day = offset + 1;
        //天干地支处理
        const sm = m - 1;
        const gzY = this.toGanZhiYear(year);

        // 当月的两个节气
        // bugfix-2017-7-24 11:03:38 use lunar Year Param `y` Not `year`
        const firstNode = this.getTerm(y, m * 2 - 1); //返回当月「节」为几日开始
        const secondNode = this.getTerm(y, m * 2); //返回当月「节」为几日开始

        // 依据12节气修正干支月
        let gzM = this.toGanZhi((y - 1900) * 12 + m + 11);
        if (d >= firstNode) {
            gzM = this.toGanZhi((y - 1900) * 12 + m + 12);
        }

        //传入的日期的节气与否
        let isTerm = false;
        let Term = null;
        if (firstNode === d) {
            isTerm = true;
            Term = this.solarTerm[m * 2 - 2];
        }
        if (secondNode === d) {
            isTerm = true;
            Term = this.solarTerm[m * 2 - 1];
        }
        //日柱 当月一日与 1900/1/1 相差天数
        const dayCyclical =
            Date.UTC(y, sm, 1, 0, 0, 0, 0) / 86400000 + 25567 + 10;
        const gzD = this.toGanZhi(dayCyclical + d - 1);
        //该日期所属的星座
        const astro = this.toAstro(m, d);

        const solarDate = y + "-" + m + "-" + d;
        const lunarDate = year + "-" + month + "-" + day;

        const festival = this.festival;
        const lFestival = this.lFestival;

        const festivalDate = m + "-" + d;
        let lunarFestivalDate = month + "-" + day;

        // bugfix https://github.com/jjonline/calendar.js/issues/29
        // 农历节日修正：农历12月小月则29号除夕，大月则30号除夕
        // 此处取巧修正：当前为农历12月29号时增加一次判断并且把lunarFestivalDate设置为12-30以正确取得除夕
        // 天朝农历节日遇闰月过前不过后的原则，此处取农历12月天数不考虑闰月
        // 农历润12月在本工具支持的200年区间内仅1574年出现
        if (month === 12 && day === 29 && this.monthDays(year, month) === 29) {
            lunarFestivalDate = "12-30";
        }
        return {
            date: solarDate,
            lunarDate: lunarDate,
            festival: festival[festivalDate]
                ? festival[festivalDate].title
                : null,
            lunarFestival: lFestival[lunarFestivalDate]
                ? lFestival[lunarFestivalDate].title
                : null,
            lYear: year,
            lMonth: month,
            lDay: day,
            Animal: this.getAnimal(year),
            IMonthCn: (isLeap ? "\u95f0" : "") + this.toChinaMonth(month),
            IDayCn: this.toChinaDay(day),
            cYear: y,
            cMonth: m,
            cDay: d,
            gzYear: gzY,
            gzMonth: gzM,
            gzDay: gzD,
            isToday: isToday,
            isLeap: isLeap,
            nWeek: nWeek,
            ncWeek: "\u661f\u671f" + cWeek,
            isTerm: isTerm,
            Term: Term,
            astro: astro,
        };
    },

    /**
     * 传入农历年月日以及传入的月份是否闰月获得详细的公历、农历object信息 <=>JSON
     * !important! 参数区间1900.1.31~2100.12.1
     * @param y  lunar year
     * @param m  lunar month
     * @param d  lunar day
     * @param isLeapMonth  lunar month is leap or not.[如果是农历闰月第四个参数赋值true即可]
     * @return JSON object
     * @eg:console.log(calendar.lunar2solar(1987,9,10));
     */
    lunar2solar: function (y, m, d, isLeapMonth) {
        y = parseInt(y);
        m = parseInt(m);
        d = parseInt(d);
        isLeapMonth = !!isLeapMonth;
        const leapOffset = 0;
        const leapMonth = this.leapMonth(y);
        const leapDay = this.leapDays(y);
        if (isLeapMonth && leapMonth !== m) {
            return -1;
        } //传参要求计算该闰月公历 但该年得出的闰月与传参的月份并不同
        if (
            (y === 2100 && m === 12 && d > 1) ||
            (y === 1900 && m === 1 && d < 31)
        ) {
            return -1;
        } //超出了最大极限值
        const day = this.monthDays(y, m);
        let _day = day;
        //bugFix 2016-9-25
        //if month is leap, _day use leapDays method
        if (isLeapMonth) {
            _day = this.leapDays(y, m);
        }
        if (y < 1900 || y > 2100 || d > _day) {
            return -1;
        } //参数合法性效验

        //计算农历的时间差
        let offset = 0;
        let i;
        for (i = 1900; i < y; i++) {
            offset += this.lYearDays(i);
        }
        let leap = 0,
            isAdd = false;
        for (i = 1; i < m; i++) {
            leap = this.leapMonth(y);
            if (!isAdd) {
                //处理闰月
                if (leap <= i && leap > 0) {
                    offset += this.leapDays(y);
                    isAdd = true;
                }
            }
            offset += this.monthDays(y, i);
        }
        //转换闰月农历 需补充该年闰月的前一个月的时差
        if (isLeapMonth) {
            offset += day;
        }
        //1900年农历正月一日的公历时间为1900年1月30日0时0分0秒(该时间也是本农历的最开始起始点)
        const strap = Date.UTC(1900, 1, 30, 0, 0, 0);
        const calObj = new Date((offset + d - 31) * 86400000 + strap);
        const cY = calObj.getUTCFullYear();
        const cM = calObj.getUTCMonth() + 1;
        const cD = calObj.getUTCDate();

        return this.solar2lunar(cY, cM, cD);
    },
};
export default calendar;
